DE102008014420B4 - Device for introducing pipes or tools into channels or pipes - Google Patents

Abstract

The object of providing a device for introducing lines or tools into channels or pipes, which enables a gentle treatment of existing lines, is achieved by the present invention in that the device comprises at least two hollow bodies that are mutually displaceable, and the hollow bodies each at least have a pressure cushion, which can be acted upon by a fluid under pressure and relieved again. The interiors of the hollow bodies (2, 3) together with openings (13) in the end faces of the hollow bodies form a continuous cavity (V), at least one first hollow body being double-walled and a second hollow body engaging in a sealing manner in the double wall of the first hollow body, so that a working cylinder (8) is formed to which a fluid under pressure or negative pressure can be applied, whereby the first and the second hollow body (2, 3) can be moved away from one another or towards one another. Due to a controlled and powerful fixation by means of the pressurized pressure pad on the inner wall of the canal in connection with the lateral propulsion movement of the mutually movable and mutually sliding hollow bodies or cylinders, a safe and gentle propulsion of the canal probe as well as a stable fixation can be achieved when tools or instruments are used will.

Description

The The invention relates to a device for introducing lines or tools in channels or pipes. The invention particularly relates to a self-propelled Device for drawing tools into manholes, channels, pipes, pipes or chimneys and to examine or repair same.

Around existing shafts, Hollow pipes or channels to inspect or relaunch it, it is known To use probes, with the help of pull ropes in the pipes or Shafts introduced be in order to allow the new lines in the existing pipes or shafts collect. Furthermore, it is known existing piping systems to replace with new tubes by means of bursting or cutting where self-moving probes can also be used.

The known device or channel probes and method for cable entry in existing pipes have the disadvantage that already in the pipe existing lines through the use of the known device damaged can be. Known Devices have sharp claws or rough means of transportation on, which can damage the pipes or existing lines in it. Further have the previously known channel probes a large amount of space, which already in the shaft or pipe existing lines over a compatible Dimension pressed or can be moved.

From the DE 101 33 484 A1 For example, a self-propelled percussion device for moving through existing lines or channels is known, which has friction elements which are designed as rollers or runners and are in contact with the wall of the line or the channel. This self-propelled percussion device has the disadvantage that it can damage already existing in the channel lines with trained as rollers or runners friction elements, especially during impact operation. Furthermore, the impact mode is not very gentle either for the existing lines or channels.

The DE 42 39 914 A1 discloses a device for inspecting cavities, such as ducts or pipelines, comprising a carriage of two carriage halves spaced apart from one another and longitudinally of the cavity one behind the other, the front carriage half being provided with a test head and the rear carriage half with advancing means connected is. Both car halves are provided with a spreading device and z. B. coupled via a tooth stage such that the distance between the two car halves can be changed periodically. This known device has the disadvantage that the two carriage halves with the spreading essentially fill the diameter of the cavity to be tested, so that it is not possible to lead, for example, cables, wires or tools on the two car halves and their spreaders over.

The DE 44 09 886 A1 describes a method for rehabilitating in particular the socket portion of non-accessible pipes. For this purpose, an injection system is used which comprises telescopic cylinders and at least two packers, can be introduced through the sealants in the pipeline. A telescoping cylinder construction can be hydraulically retracted and extended and allows the distance between the two adjacent packers to be varied so that the area of the pipeline can be pressure tested. Furthermore, the telescope has the effect of an automatic walking mechanism, with which the injection system can be moved within the pipeline. These prior art devices also have the disadvantage that both the telescoping cylinders and the packers substantially fill the diameter of the pipeline so that no cables, lines or tools can be passed past them.

task Therefore, it is the object of the present invention to provide a device or channel probe and a method for introducing lines or tools in channels or provide pipes that are as gentle as possible treatment already existing pipes, the duct, pipeline or shaft guarantee. A further object of the present invention is to be seen in a device for introducing tools into channels or To provide pipes that use as large and flexible as possible Tools possible. Further an object of the present invention is to provide a solid stands for the use of tools in existing pipe systems, manholes, pipes or channels to ensure.

The The above objects are achieved by the device according to the invention with those in the independent Device claim specified characteristics solved. Advantageous developments The present invention are set forth in the respective subclaims.

The present invention provides a device for introducing pipes or tools into channels, pipes or chimneys, wherein the device comprises at least two hollow bodies, which are displaceable against each other, and the hollow bodies each have at least one pressure pad, which pressurizes a fluid under pressure and can be relieved again. The pressure pads can be pneumatically, hydraulically or electrically pressurized with a fluid, so that they inflate in the radial direction with respect to the hollow body. As a result, the pressure pads come with the inner wall of the channel or pipe in fixing contact. By an alternating pressurization of the pressure pad in combination with a lateral movement of the hollow body, a caterpillar-like locomotion of the device according to the invention in a channel or pipe can be achieved.

The inventive device or channel probe provides by the mutually displaceable hollow body and the pressure pad arranged on it a gentle and safe Propulsion and a stable fixation on the inner walls of the Channels when using the inserted tool or instrument. Due to the controlled and powerful fixation on the inner wall the channel by means of the pressurized pressure pad or bellows on the hollow bodies or cylinder sections in conjunction with the lateral advancing movement of mutually movable and each other sliding hollow body or Cylinder, can be a controlled and powerful locomotion of the Channel probe can be achieved. As a result, the channel probe also has a extraordinary gradeability and therefore, for example, can move in vertical chimneys. Further, for example, protruding welds and other bumps on the inner wall of the tube or channel with the channel probe according to the invention easy to overcome.

there allows the device according to the invention also the introduction of tools or instruments into manholes, channels, pipes, Lines or chimneys for their investigation or for their repair. For example, you can through the channel probe cameras in existing shafts or piping systems be introduced to inspect them from the inside. By the inventive device can statically or hitting propelling drilling or Meiselgeräte to one desired Location in existing shafts or piping systems are brought to, for example, blockages or other disabilities in it.

By the device according to the invention can also Grouting or concreting equipment in dilapidated shafts or piping systems are introduced to this from the inside to repair or expand. By the device according to the invention can further tube thickness tester, Cutters, presses, Sandblasters, brushes, High-pressure cleaners, scrapers, steam jets, or leak detectors in ducts, shafts, pipes or chimneys are introduced. The device according to the invention Consequently, it can be used to examine, repair or retract long bodies into existing shafts or piping systems are used, with a maximum Protection of existing lines is guaranteed.

at a preferred embodiment of the present invention the pressure pad alternately pressurized with a fluid be by the arranged on a first hollow body pressure pad filled with a fluid under pressure be while the at a second hollow body be relieved arranged pressure pad. Additionally or alternatively, the Pressure pad also applied simultaneously with a fluid under pressure when a simultaneous fixation on the inner wall of the channel by means of the pressurized pressure pad or bellows on the hollow bodies or Cylinder sections is required. This can, for example, the Be case, when arranged with the device and so in the Channel introduced tool or instrument used shall be.

The hollow body can each formed as a cylinder and so mutually displaceable be connected, that their longitudinal axis parallel to each other. The interiors of the hollow body form a coherent Volume suitable for holding instruments, pipes or tools is. As a result, the interior of the channel probe is almost completely Usable space. In this interior, for example, tools or instruments for inspection or repair of the canal and attached. Furthermore, can the front ends of the hollow body or cylinder at least be partially open. In this way, the interior of the device forms one open on both sides Cavity or tube. Because of this peculiarity is the channel probe Versatile with continuous cavity and offers a Maximum space and compatibility for admission and for the transport of pipes, tools or instruments.

The hollow bodies are displaceable relative to each other so that they can perform a longitudinal movement relative to each other and parallel to their longitudinal axes. This movement of the hollow body can be accomplished for example by means of pneumatic, hydraulic or electric drive. Likewise, the pressure pad or bellows can be acted upon or relaxed by means of the pneumatic, hydraulic or electric drive with a fluid under pressure. This pneumatic or hydraulic drive can be either self-contained in the device itself or separately provided separately from the device, wherein a pressurized fluid from the outside over corresponding pressure lines to the channel probe can be performed.

According to one preferred embodiment of present invention, the hollow body or cylinder respectively one on their outer walls Number of pressure pads on, pneumatic or hydraulic with a fluid under pressure can be applied, so that these in Reference to the hollow body inflate in the radial direction. Additionally or alternatively, on the hollow bodies or cylinders each at least one over the entire circumference of the hollow body be provided through continuous pressure pad. Such over the entire circumference of the hollow body continuous pressure pad provides a particularly good grip of the Channel probe on the inner wall of the canal. It is also advantageous if arranged the pressure pad in the region of the opposite ends of the hollow body are. This allows a maximum lateral displacement movement of the hollow body or cylinders are achieved to each other.

According to the present Invention are the hollow body or cylinders arranged so interlocking that they at least form a working cylinder by means of a pneumatic, hydraulic or electrical drive with a fluid under pressure and can be relieved again. This can be at least the first Hollow body double-walled be trained while the second hollow body sealing with a wall in the double wall of the first hollow body engages, so that a working cylinder is formed. This working cylinder can be pressurized with a fluid under pressure or with negative pressure can be, whereby the first and the second hollow body apart or pushed away from each other or pulled together or into each other.

Consequently let the lateral movements of the cylindrical hollow body pneumatically or hydraulically initiate and control. This can at least one Working cylinder between the hollow bodies or cylinders by means the pneumatic, hydraulic or electric drive such can be pressurized with a fluid under pressure the hollow bodies move apart or the working cylinder can be relieved of the pressure or by means of the pneumatic, hydraulic or electric Drive can be subjected to negative pressure, so that the hollow body move back to each other. Alternatively, the hollow body by means of pneumatic, hydraulic or electric drive as well be moved against the spring force of a spring element, and the Working cylinder again be relieved of pressure, so that the hollow body move back again by the spring force of the spring element.

Especially It is advantageous if the pneumatic or hydraulic pressure in the pressure pad and / or in the working cylinder via a control unit and the pneumatic, hydraulic or electric drive separately is controllable. The pressure of the fluid applied to the pressure pads, is preferably variable as needed.

at a further preferred embodiment of the present invention are hollow bodies on their outer walls, respectively a number of sliding blocks and / or provided rollers, wherein the radial distance of the sliding blocks and / or Rolls in relation to the hollow body is less than the extension of the pressure pads in the radial direction, when they are pressurized with a fluid under pressure. Thereby is a sliding movement of a hollow body on the inner wall of the Channel possible, while the pressure pads are relaxed. By means of the rollers can be move the channel probe quickly to a location before the crawler-type locomotion is used or a stable Fixation of the channel probe via the pressure pad is needed with the inner wall of the channel.

It can over the Circumference of the hollow body alternately Pressure pads and sliding blocks and / or rollers may be provided to optionally one as possible good sliding movement of the channel probe on the inner wall of the channel or one possible Stable fixation of the channel probe via the pressure pad with the inner wall of the channel needed will allow. The on the hollow bodies arranged pressure pad, slide blocks and / or rollers may be interchangeable. The exchangeable sliding blocks and / or roles differ in their radial dimensions and the pressure pads can in their radial dimensions in the pressurized state differentiate the device to different channel or Adjust pipe diameter. additionally or alternatively the on the hollow bodies arranged pressure pad, sliding blocks and / or rollers with spacers be underlined to the radial dimensions of the pressure pad, sliding blocks and / or Adjust rollers to different duct or pipe diameters.

Around the device according to the invention adapt to different duct, duct or pipe diameters are preferably the hollow body the channel probe already provided with appropriate diameters. in principle must they Diameter of the hollow body Naturally smaller than the diameters of the duct or pipe so that the Channel probe can be inserted into the channel, the chimney or the pipe can. The diameter of the cylindrical hollow body should be so be measured that the pressure pad between the cylindrical hollow and the inner wall of the channel or pipe work as optimally as possible.

According to one Another aspect of the present invention includes the device at least one receptacle on which instruments, tools, inspection equipment or to be transported lines can be attached. Such Tool shots can on the outside wall and / or be arranged on the front side of at least one hollow body and, for example designed as threaded holes, internal threads, connectors and / or bayonet locks where instruments, tools, inspection equipment or to transporting lines can be attached. In a preferred embodiment The present invention is on the inner wall of a front side at least one hollow body an internal thread is provided in the tools via a corresponding Mating thread can be attached.

According to one another embodiment the present invention is between two adjacent hollow bodies of Channel probe provided a joint over which the hollow body to each other are pivotally coupled. The joint preferably allows pivotal movements the hollow body relative to each other in all spatial directions. The joint is for example can be designed as a universal joint or ball joint and can also controllable by means of the pneumatic, hydraulic or electric drive be to perform targeted pivotal movements of the hollow body relative to each other can.

advantageously, sensors are provided on the device according to the invention, which the relative position of the hollow body to each other, as well as the pneumatic or hydraulic pressure in the pressure pad and / or in the working cylinder or other operating parameters of the channel probe to capture. These sensors can be designed as mechanical or electromagnetic sensors. Further a controller may be provided, with the help of which channel probe according to the invention via electrical, pneumatic and / or hydraulic lines can be remotely controlled. Other lines of wired or wireless interfaces the channel probe can for example, submit images, which are detected by a camera on the channel probe.

As described above, the device according to the invention by the one against the other slidable cylindrical hollow body a continuous cavity on top of the openings to the opposite End faces of the hollow body is open. Thereby can even while the use of the device according to the invention in a channel or pipe more cables through the continuous cavity be retracted by the device simply by the continuous cavity of the device are retracted. New cables have to thus not be guided past the channel probe, where often barely enough space is.

Provided the continuous cavity of the device according to the invention not through a tool or instrument is completely occupied, the channel probe according to the invention even in canals, pipes, shafts or fireplaces are used while these are in operation and in it, for example, gas or water flows. Because the inventive channel probe has a continuous cavity with a large cross-section can through these fluids or gases continue to flow through the duct or shaft, too while the channel probe operates in the channel or well. Let that way For example, sewage or fresh water channels in the active Inspect operating condition without shutting down the relevant shaft or ducts, or existing gas lines while be inspected or repaired during operation without these must be switched off.

• (a) Montieren der einzubringenden Instrumente, Leitungen oder Werkzeuge an der Vorrichtung durch deren zumindest teilweise Aufnahme im Innenraum der Hohlkörper;
• (b) Platzieren der Vorrichtung in einem Kanal oder Rohr;
• (c) Beaufschlagen von an einem ersten Hohlkörper der Vorrichtung angeordneten Druckkissen mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen an dem ersten Hohlkörper mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen;
• (d) Entspannen der an einem zweiten Hohlkörper der Vorrichtung angeordneten Druckkissen, so dass diese mit der Innenwand des Kanals oder Rohrs keinen fixierenden Kontakt haben;
• (e) Bewegen des zweiten Hohlkörpers gegenüber dem ersten Hohlkörper in Richtung einer gewünschten Bewegungsrichtung der Vorrichtung in dem Kanal oder Rohr;
• (f) Beaufschlagen von an dem zweiten Hohlkörper angeordneten Druckkissen mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen an dem zweiten Hohlkörper mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen;
• (g) Entspannen der an dem ersten Hohlkörper der Vorrichtung angeordneten Druckkissen, so dass diese mit der Innenwand des Kanals oder Rohrs keinen fixierenden Kontakt haben; und
• (h) Bewegen des ersten Hohlkörpers gegenüber dem zweiten Hohlkörper in Richtung der gewünschten Bewegungsrichtung der Vorrichtung in dem Kanal oder Rohr.

The device according to the invention for introducing instruments, conduits or tools into channels or pipes can be operated by a method comprising the following steps:

• (A) mounting the instruments to be introduced, lines or tools on the device by at least partially receiving it in the interior of the hollow body;
• (b) placing the device in a duct or pipe;
• (c) pressurizing a pressure pad arranged on a first hollow body of the device with a fluid under pressure such that at least a number of the pressurized pressure pads on the first hollow body make a fixing contact with the inner wall of the channel or tube;
• (d) releasing the pressure pads arranged on a second hollow body of the device such that they have no fixing contact with the inner wall of the channel or tube;
• (e) moving the second hollow body relative to the first hollow body in the direction of a desired direction of movement of the device in the channel or pipe;
• (f) pressurizing pressure pads disposed on the second hollow body with a fluid under pressure so that at least a number of the pressurized pressure pads on the second hollow body make a fixing contact with the inner wall of the channel or tube;
• (G) relaxing the arranged on the first hollow body of the device pressure pad so that it with the inner wall of the channel or tube have no fixing contact; and
• (H) moving the first hollow body relative to the second hollow body in the direction of the desired direction of movement of the device in the channel or pipe.

• (i) die voranstehenden Verfahrenschritte (a) bis (h) entsprechend nach Bedarf wiederholt werden.

In this way, the device according to the invention can move caterpillar-like forward or backward through the channel. In order to cover a certain distance in a channel or pipe with the device, can in a repetition step

• (i) the above process steps (a) to (h) are repeated as necessary.

• (j) Ausrichten des zweiten Hohlkörpers in einer gewünschten Raumrichtung durch eine Schwenkbewegung relativ zum ersten Hohlkörper; und
• (k) Bewegen des zweiten Hohlkörpers gegenüber dem ersten Hohlkörper in die gewünschte Raumrichtung.

With the embodiment of the device described above, in which the hollow bodies are pivotably coupled via a joint, the following steps can additionally be carried out between steps (d) and (e):

• (J) aligning the second hollow body in a desired spatial direction by a pivoting movement relative to the first hollow body; and
• (k) moving the second hollow body relative to the first hollow body in the desired spatial direction.

• (l) Ausrichten des zweiten Hohlkörpers in Richtung eines abbiegenden oder abzweigenden Rohrs oder Kanals durch eine Schwenkbewegung relativ zum ersten Hohlkörper; und
• (m) Bewegen des zweiten Hohlkörpers gegenüber dem ersten Hohlkörper in die Richtung des abbiegenden oder abzweigenden Rohrs oder Kanals.

In this way, the device can be aligned, for example, in the direction of a deflecting or branching tube or channel, in order then to move further in this direction. The following steps can be done for this:

• (L) aligning the second hollow body in the direction of a bending or branching pipe or channel by a pivoting movement relative to the first hollow body; and
• (M) moving the second hollow body relative to the first hollow body in the direction of the bending or branching pipe or channel.

• (n) Beaufschlagen von an dem ersten und an dem zweiten Hohlkörper der Vorrichtung angeordneten Druckkissen mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen, um die Vorrichtung an einer gewünschten Stelle in dem Kanal oder Rohr zu fixieren; und
• (o) Anwenden eines oder mehrerer der mit der Vorrichtung in den Kanal oder das Rohr eingebrachten Instrumente oder Werkzeuge.

Once the device or channel probe has reached a desired location in the channel, the locomotive operation can be discontinued. Subsequently, a tool or instrument arranged on the channel probe and thus introduced into the channel can be used. It may be necessary for the channel probe to provide a firm footing to provide the tool or instrument with a stable working basis. The following steps can be done for this:

• (n) pressurizing pressure pads disposed on the first and second hollow bodies of the device with a fluid under pressure so that at least a number of the pressurized pressure pads make a fixing contact with the inner wall of the channel or tube to place the device in a desired location to fix in the channel or pipe; and
• (o) applying one or more of the instruments or tools introduced into the channel or tube with the device.

The inventive device or channel probe is therefore suitable both for introducing new lines or tools in any type of interior walls having channels, pipes, Shafts or Chimneys that provide a defined locomotion of a body within the canal, Shaft or pipeline, but also for every situation a stable state by a powerful fixation of the channel probe with the inner wall of the channel required. This is how the self-propelled Channel probe, for example, in the leakage control, maintenance or repair lines and ducts.

following the invention will be described with reference to preferred embodiments with reference on the attached Drawings closer explained. Show it:

1 a sectional view of a channel probe according to a first embodiment of the present invention;

2 a perspective view of a channel probe according to a second embodiment of the present invention;

3 a front view from the left part of in 2 illustrated embodiment of the present invention;

4 an end view from the right part of the 2 illustrated embodiment of the present invention; and

5 a perspective view of a third embodiment of the present invention.

1 shows a perspective view of a channel probe according to a first embodiment of the present invention. In this embodiment, the device or channel probe according to the invention comprises 1 two hollow bodies 2 and 3 which have a cylindrical shape. The hollow body 2 . 3 are arranged against each other and slidable, so that their longitudinal axes are superposed or at least parallel to each other. Both hollow bodies 2 . 3 are formed with a double wall, each having a gap. The hollow body 2 . 3 For example, essentially of a plastic, ceramic or a metal such. B. steel or aluminum.

The two hollow bodies 2 . 3 are slidably interlocked in such a way that the double walls of a hollow body 2 . 3 each in the space of the other hollow body 2 . 3 sealingly attacks. In this way, several working cylinders 8th formed, the volume of each by the lateral movement of the cylindrical hollow body 2 . 3 changed against each other. The sealing of the working cylinder 8th is through gaskets 9 on the double walls of the cylindrical hollow body 2 . 3 guaranteed. The working cylinders 8th can be acted upon by means of a pneumatic, hydraulic or electric drive with a fluid under pressure or negative pressure, whereby the hollow body 2 . 3 either away from each other or into each other. This reciprocation of the hollow bodies 2 . 3 towards each other or away from each other is in 1 indicated by a double arrow.

• – Positionieren der Vorrichtung 1 in einem Kanal oder Rohr;
• – Beaufschlagen von Druckkissen 4, die an einem ersten Hohlkörper 2 der Vorrichtung 1 angeordnet sind, mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen 4 an dem ersten Hohlkörper 2 mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen;
• – Entspannen der an einem zweiten Hohlkörper 3 der Vorrichtung 1 angeordneten Druckkissen 4, so dass diese mit der Innenwand des Kanals oder Rohrs keinen fixierenden Kontakt haben;
• – Bewegen des zweiten Hohlkörpers 3 gegenüber dem ersten Hohlkörper 2 in Richtung einer gewünschten Bewegungsrichtung der Vorrichtung 1 in dem Kanal oder Rohr;
• – Beaufschlagen von an dem zweiten Hohlkörper 3 angeordneten Druckkissen 4 mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen 4 an dem zweiten Hohlkörper 3 mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen;
• – Entspannen der an dem ersten Hohlkörper 2 der Vorrichtung 1 angeordneten Druckkissen 4, so dass diese mit der Innenwand des Kanals oder Rohrs keinen fixierenden Kontakt haben; und
• – Bewegen des ersten Hohlkörpers 2 gegenüber dem zweiten Hohlkörper 3 in Richtung der gewünschten Bewegungsrichtung der Vorrichtung 1 in dem Kanal oder Rohr.

On the outsides of the hollow body 2 . 3 is at least one pressure pad 4 arranged, each of which can be pressurized with a fluid under pressure and relieved again. The pressure pads 4 can be pneumatically or hydraulically pressurized with a fluid, so that they are in relation to the longitudinal axis of the hollow body 2 . 3 inflate in the radial direction. When the device 1 Located in a channel, thereby the pressure pad 4 come into fixing contact with the inner wall of the channel. By an alternating pressurization of the pressure pad in combination with a lateral movement of the hollow body, a caterpillar-like locomotion of the device according to the invention in a channel or pipe can be achieved. This can be done, for example, by following a procedure with the following steps:

• - Positioning the device 1 in a canal or pipe;
• - Apply pressure pads 4 attached to a first hollow body 2 the device 1 are arranged, with a fluid under pressure, so that at least a number of the pressurized pressure pad 4 on the first hollow body 2 make a fixing contact with the inner wall of the duct or pipe;
• - Relax the on a second hollow body 3 the device 1 arranged pressure pad 4 so that they have no fixing contact with the inner wall of the channel or pipe;
• - Moving the second hollow body 3 opposite the first hollow body 2 in the direction of a desired direction of movement of the device 1 in the channel or pipe;
• - Applying to the second hollow body 3 arranged pressure pad 4 with a fluid under pressure so that at least a number of the pressurized pressure pads 4 on the second hollow body 3 make a fixing contact with the inner wall of the duct or pipe;
• - Relax the on the first hollow body 2 the device 1 arranged pressure pad 4 so that they have no fixing contact with the inner wall of the channel or pipe; and
• - Moving the first hollow body 2 opposite the second hollow body 3 in the direction of the desired direction of movement of the device 1 in the canal or pipe.

This procedure can be repeated until the device 1 has traveled a desired distance in the channel or pipe. In this way, the device or channel probe according to the invention by the mutually displaceable hollow body and the pressure pad arranged thereon for the channel and therein existing lines a gentle and safe propulsion. In this case, the interiors of the hollow body 2 . 3 form a coherent volume V suitable for receiving instruments, conduits or tools. Alternatively, this volume V can also be used as a channel which is open on both sides and therefore continuous in the channel probe 1 be kept free.

The pressure pads 4 may be formed both as a single bladder, over the circumference of the hollow body 2 . 3 are distributed on the outside thereof, or as the entire circumference of the hollow body 2 . 3 comprehensive pressure pad 5 be trained, as in the 2 and 4 can be seen. Next to the pressure pad 4 . 5 are on the outside of the hollow body 2 . 3 Slide blocks or sliding blocks 6 arranged, whose radial distance from the hollow body is less than the extension of the pressure pad 4 . 5 in the radial direction when they are pressurized with a fluid under pressure. This is a sliding movement of the device 1 on the inner wall of the channel while the pressure pads are relaxed. Instead of the sliding blocks 6 Rollers can also be provided. Further, the pressure pads and slide blocks with spacers 7 underlaid, which have different dimensions in order to adapt the radial dimensions of the pressure pad and / or slide blocks to different channel or pipe diameter.

At the free ends 13 the cylindrical hollow body 2 . 3 are shots 11 . 12 be provided for tools or instruments. These shots 11 . 12 For example, as threaded holes 12 , Inner thread 11 , Plug connections and / or bayonet locks may be formed on which to be transported lines instruments, tools or inspection means can be attached. At the in 1 illustrated embodiment of the present invention is on the inner wall of the end face 13 the hollow body 2 . 3 one internal thread each 11 and tapped holes 12 provided in the tools can be attached via a corresponding mating thread.

The device according to the invention 1 is with sensors 10 equipped, which the relative Stel Development of the hollow body 2 . 3 capture each other. These sensors 10 can be designed as mechanical stop sensors or electromagnetic sensors. There may also be other sensors 10 be provided that the pneumatic or hydraulic pressure in the pressure pad 4 . 5 and / or in the working cylinder 8th or other other operating parameters of the channel probe 1 to capture. The operating parameters detected by the sensors may be forwarded to a central control unit (not shown) which, based on the sensor data and other inputs, provides the necessary channel probe control signals 1 calculated. By means of this control, the channel probe according to the invention can be remotely controlled via electrical, pneumatic and / or hydraulic lines, wherein via further lines of wired or wireless interfaces of the channel probe 1 For example, images can be transmitted from a camera to the channel probe 1 be recorded.

2 shows a perspective view of a channel probe according to a second embodiment of the present invention. In this embodiment, there are two pairs of hollow bodies 2 . 3 provided that over a joint 4 coupled together. However, there may be more pairs of hollow bodies 2 . 3 be put together to a train. The hollow body pairs 2 . 3 are in each case in turn displaced in such a way that they can move in a lateral movement either towards or away from each other. This reciprocation of the hollow bodies 2 . 3 is in 2 indicated by double arrows.

On the left side of the device 1 are at the free end of the hollow body 2 over the circumference of the outside alternately pressure pad 4 and sliding blocks 6 intended. The sliding blocks have 6 a larger radial dimension than the pressure pads 4 in the relaxed state. On the other hand, the pressure pads 4 in the pressurized state, a larger radial dimension than the sliding blocks 6 , At the free end of the hollow body 3 on the right side of the channel probe 1 is on the outside a the entire circumference of the hollow body 2 comprehensive pressure pad 4 arranged. There are the sliding blocks 6 on the outside of the hollow body 3 in the axial direction behind the pressure pad 4 arranged.

• – Ausrichten des zweiten Hohlkörpers 3 in Richtung eines abbiegenden oder abzweigenden Rohrs oder Kanals durch eine Schwenkbewegung relativ zum ersten Hohlkörper 2; und
• – Bewegen des zweiten Hohlkörpers 3 gegenüber dem ersten Hohlkörper 2 in die Richtung des abbiegenden oder abzweigenden Rohrs oder Kanals.

The joint 14 between the two coupled parts of the channel probe 1 is designed as a universal joint or ball joint, which is a pivotal movement of the one part relative to the other part of the channel probe 1 in all directions. The joint 14 between the coupled hollow bodies 2 . 3 can by a joint control rod 15 be controlled so that the two coupled parts of the channel probe 1 can be targeted to each other. As a result, the device according to the invention can also follow bending pipes or pivot into branching pipes. This can be done, for example, by a procedure with the following steps:

• - Aligning the second hollow body 3 in the direction of a bending or branching pipe or channel by a pivoting movement relative to the first hollow body 2 ; and
• - Moving the second hollow body 3 opposite the first hollow body 2 in the direction of the bending or branching pipe or channel.

3 shows an end view of the left part of in 2 illustrated embodiment of the present invention. It can be seen that at the free end of the hollow body 2 on the left side of the channel probe 1 on the outside thereof over the entire circumference of the hollow body 2 each alternating pressure pad 4 and sliding blocks 6 are arranged. In the middle of the in 3 shown front view is the concentric opening 13 of the hollow body 2 to recognize the entrance or exit of the continuous cavity V from the two interiors of the two hollow body 2 and 3 represents.

To illustrate an alternative embodiment of the pressure pad 4 shows 4 an end view from the right part of the 2 illustrated embodiment of the present invention. In 4 it can be seen that at the free end of the hollow body 3 on the right side of the channel probe 1 on the outside of the entire circumference of the hollow body 2 comprehensive pressure pad 4 is provided. The sliding blocks 6 are therefore, as in 2 to see on the outside of the hollow body 3 in the axial direction behind the pressure pad 4 arranged. In the middle of the in 4 shown end view is again a concentric opening 13 of the hollow body 3 to recognize the entrance or exit of the continuous interior V of the cavities of the two hollow body 2 and 3 represents.

5 shows a perspective view of a third embodiment of the present invention. In the 5 shown embodiment of the channel probe according to the invention substantially corresponds to in 2 illustrated embodiment with the difference that in the in 5 shown embodiment, a tool in the form of a Meisel or milling head 18 is provided. This tool 18 is about a clutch 17 on the front side of a hollow body 3 arranged. The coupling 17 may for example consist of a thread that is complementary to the internal thread 12 in the opening 13 on the front side of a hollow body 3 is trained. In this case, the drive for the Meisel or milling head 18 in the cavity of the hollow body 2 or in the common inner volume V of the hollow body 2 and 3 be housed. The coupling 17 but can also be designed as a complement to threaded holes, connectors or bayonet locks, which are used as recordings of tools 18 or instruments on the front side of the free ends of the hollow body 3 can be provided.

At the ends of the hollow body 2 . 3 are over the circumference in each case alternately pressure pad 4 and sliding blocks 6 intended. The joint 14 between the two coupled parts of the channel probe 1 is again designed as a universal joint or ball joint, which is a pivotal movement of the one part relative to the other part of the channel probe 1 in all directions. The joint 14 between the coupled hollow bodies 2 . 3 can by two joint control rods 15 and 16 be controlled so that the two coupled parts of the channel probe 1 can be targeted to each other in all spatial directions. As a result, the device according to the invention can also follow bendable pipes or pivot into branching pipes, as above 2 described. The joint 14 itself may also serve as a receptacle for tools or instruments, wherein the tool or instrument may have a direction of action which is at a vertical angle or at any other angle with respect to the lateral longitudinal axis of the device 1 can be directed.

Furthermore, in 5 to recognize that the two coupled parts of the channel probe 1 two hollow bodies each 2 . 3 comprises, which are each movable in the lateral direction parallel to their longitudinal axes against each other. By alternating pressurization of the pressure pad 4 in combination with the lateral displacement movement of the hollow body 2 . 3 As described above, a caterpillar movement of the device in a channel or shaft can thus be achieved while the channel probe is the tool 18 brings to the desired location. This reciprocation of the hollow bodies 2 . 3 is also in 5 again indicated by double arrows. Alternatively, all pressure pads 4 be pressurized with a fluid to the pressure pad 4 expand in the radial direction, causing the channel probe 1 over the pressure pads 4 with the inner wall of the channel undergoes a stable fixation. As a result, a firm grip of serving as a tool carrier channel probe 1 for the use of the tool 18 be guaranteed. There are also several tools 18 at a canal probe 1 be arranged and used sequentially or simultaneously.

• • Beaufschlagen von Druckkissen 4, 5, die an dem ersten und an dem zweiten Hohlkörper 2, 3 der Vorrichtung 1 angeordnet sind, mit einem Fluid unter Druck, so dass zumindest eine Anzahl der druckbeaufschlagten Druckkissen 4, 5 mit der Innenwand des Kanals oder Rohrs einen fixierenden Kontakt herstellen, um die Vorrichtung 1 an einer gewünschten Stelle in dem Kanal oder Rohr zu fixieren; und
• • Anwenden eines oder mehrerer der mit der Vorrichtung 1 in den Kanal oder das Rohr eingebrachten Instrumente oder Werkzeuge 18.

This can be done, for example, by a procedure with the following steps:

• • Apply pressure pads 4 . 5 attached to the first and second hollow bodies 2 . 3 the device 1 are arranged, with a fluid under pressure, so that at least a number of the pressurized pressure pad 4 . 5 make a fixing contact with the inner wall of the duct or pipe to the device 1 to fix at a desired location in the channel or pipe; and
• Apply one or more of the with the device 1 into the channel or pipe introduced instruments or tools 18 ,

The device or channel probe according to the invention thus offers by the mutually displaceable hollow body 2 . 3 and the pressure pad arranged thereon 4 Both a gentle and safe propulsion and a stable fixation on the inner walls of the channel when using a tool or instrument introduced. Due to the controlled and powerful fixation on the inner wall of the channel by means of the pressurized pressure pad or bellows 4 . 5 on the hollow bodies 2 . 3 in connection with the lateral propulsion movement of the mutually movable and each other sliding hollow body 2 . 3 , a controlled and powerful movement of the channel probe can be achieved.

LIST OF REFERENCE NUMBERS

1

inventive device or channel probe

2

cylindrical hollow body

3

cylindrical hollow body

4

caul or bellows

5

continuous Pressure pad or bellows

6

Sliding blocks or sliding blocks

7

Spacers under the sanding blocks 6 and under the pressure pad 4

8th

working cylinder

9

seals

10

sensors or microswitch

11

receiving thread Plug connection or bayonet lock

12

inner thread for tool holder

13

openings at the front sides / opposite Ends of the hollow body 2, 3rd

14

joint between hollow bodies 2, 3

15

Joint control rod

16

Joint control rod

17

clutch to the tool 18

18

Tool or chisel or milling head

V

coherent Volume of the hollow body 2, 3rd

Claims (28)

Device for introducing lines or tools ( 18 ) into channels or pipes the device ( 1 ) at least two hollow bodies ( 2 . 3 ), which are mutually displaceable, and the hollow body ( 2 . 3 ) at least one pressure pad ( 4 . 5 ), which can be pressurized with a fluid under pressure and relieved again, characterized in that the interiors of the hollow body ( 2 . 3 ) together with openings ( 13 ) in the front ends of the hollow body ( 2 . 3 ) form a continuous cavity (V), wherein at least a first hollow body ( 2 . 3 ) is double-walled and a second hollow body ( 2 . 3 ) in the double wall of the first hollow body ( 2 . 3 ) engages sealingly, so that a working cylinder ( 8th ) is formed, which can be acted upon by a fluid under pressure or negative pressure, whereby the first and the second hollow body ( 2 . 3 ) away from each other or to each other. Apparatus according to claim 1, wherein the pressure pads ( 4 . 5 ) can be pressurized alternately with a fluid by the pressure on a first hollow body ( 2 . 3 ) arranged pressure pad ( 4 . 5 ) are filled with a fluid under pressure, while at a second hollow body ( 2 . 3 ) arranged pressure pad ( 4 . 5 ) be relieved. Device according to one of the preceding claims, wherein the pressure pads ( 4 . 5 ) can be pressurized simultaneously with a fluid under pressure. Device according to one of the preceding claims, wherein on the hollow bodies ( 2 . 3 ) one each over the entire circumference of the hollow body ( 2 . 3 ) continuous pressure pad ( 4 . 5 ) is provided and / or a number of over the circumference of the hollow body ( 2 . 3 ) distributed pressure pad ( 4 . 5 ) are provided. Device according to one of the preceding claims, wherein the pressure pads ( 4 . 5 ) in the region of the opposite ends ( 13 ) the hollow body ( 2 . 3 ) are arranged. Device according to one of the preceding claims, wherein the interiors of the hollow body ( 2 . 3 ) form a coherent volume (V) suitable for receiving instruments, conduits or tools ( 18 ) suitable is. Device according to one of the preceding claims, wherein the hollow bodies ( 2 . 3 ) are formed as a cylinder with a longitudinal axis whose front ends ( 13 ) are at least partially open. Device according to one of the preceding claims, wherein the hollow bodies ( 2 . 3 ) are displaceable relative to each other so that they perform a longitudinal movement relative to each other and parallel to their longitudinal axes. Device according to one of the preceding claims, wherein the hollow bodies ( 2 . 3 ) are mutually displaceable by means of a pneumatic, hydraulic or electric drive. Device according to one of the preceding claims, wherein the hollow bodies ( 2 . 3 ) are arranged in such a way that they engage at least one working cylinder ( 8th ) form, which can be acted upon by means of a pneumatic, hydraulic or electric drive with a fluid under pressure and relieved again. Device according to the preceding claim, wherein the at least one working cylinder ( 8th ) between the hollow bodies ( 2 . 3 ) can be acted upon by the pneumatic, hydraulic or electric drive in such a way with a fluid under pressure, that the hollow body ( 2 . 3 ), and the working cylinder ( 8th ) can be relieved of pressure or subjected to negative pressure by means of the pneumatic, hydraulic or electric drive, so that the hollow bodies ( 2 . 3 ) move back to each other. Device according to the preceding claim, wherein the at least one working cylinder ( 8th ) between the hollow bodies ( 2 . 3 ) can be acted upon by the pneumatic, hydraulic or electric drive in such a way with a fluid under pressure, so that the hollow body ( 2 . 3 ) are moved against the spring force of a spring element, and the working cylinder ( 8th ) can be relieved of pressure again, so that the hollow body ( 2 . 3 ) move back by the spring force of the spring element. Device according to one of the preceding claims, wherein the pneumatic or hydraulic pressure in the pressure pad ( 4 . 5 ) and / or in the working cylinder ( 8th ) is controlled separately via a control unit and the pneumatic, hydraulic or electric drive. Device according to one of the preceding claims, wherein the pressure with which the pressure pads ( 4 . 5 ) is variable, can be varied. Device according to one of the preceding claims, wherein the hollow bodies ( 2 . 3 ) on their outer walls a number of pressure pads ( 4 . 5 ), which can be pressurized pneumatically or hydraulically with a fluid under pressure, so that these with respect to the hollow body ( 2 . 3 ) inflate in the radial direction. Device according to the preceding claim, wherein the hollow bodies ( 2 . 3 ) on the outside each have a number of sliding blocks ( 6 ) and / or rollers, wherein the radial distance of the sliding blocks and / or rollers with respect to the hollow body ( 2 . 3 ) is less than the extension of the pressure pad ( 4 . 5 ) in the radial direction when they are pressurized with a fluid under pressure. Device according to the preceding claim, wherein over the circumference of the hollow body ( 2 . 3 ) alternating pressure pads ( 4 . 5 ) and sliding blocks ( 6 ) and / or rollers are provided. Device according to the preceding claim, wherein the on the hollow bodies ( 2 . 3 ) arranged pressure pad ( 4 . 5 ), Sliding blocks ( 6 ) and / or roles are interchangeable to the device ( 1 ) to adapt to different channel or pipe diameter. Device according to the preceding claim, wherein the on the hollow bodies ( 2 . 3 ) arranged pressure pad ( 4 . 5 ), Sliding blocks ( 6 ) and / or rollers with spacers ( 7 ) in order to reduce the radial dimensions of the pressure pads ( 4 . 5 ), Sliding blocks and / or rollers to adapt to different channel or pipe diameter. Device according to one of the preceding claims, wherein the device ( 1 ) at least one recording ( 11 . 12 . 13 , V) instruments, tools ( 18 ), Inspection means or lines to be transported can be fastened. Device according to the preceding claim, wherein the receptacles on the eye wall and / or on the front side of at least one hollow body ( 2 . 3 ) are arranged, such. B. tapped holes ( 11 ), Inner thread ( 12 ), Connectors ( 11 ) and / or bayonet locks ( 11 ), where instruments, tools ( 18 ), Inspection means or lines to be transported can be fastened. Device according to one of the preceding claims, wherein on the inner wall of an end face of at least one hollow body ( 2 . 3 ) an internal thread ( 12 ), into which tools ( 18 ) can be attached via a corresponding mating thread. Device according to one of the preceding claims, wherein between two adjacent hollow bodies ( 2 . 3 ) a joint ( 14 ) is provided, via which the hollow body ( 2 . 3 ) are pivotally coupled to each other. Device according to the preceding claim, wherein the joint ( 14 ) Pivoting movements of the hollow body ( 2 . 3 ) relative to each other in all spatial directions. Device according to the preceding claim, wherein the joint ( 14 ) is designed as a universal joint or ball joint and is controllable by means of a pneumatic, hydraulic or electric drive. Device according to the preceding claim, wherein sensors ( 10 ) are provided, which the relative position of the hollow body ( 2 . 3 ), as well as the pneumatic or hydraulic pressure in the pressure pad ( 4 . 5 ) and / or in the working cylinder ( 8th ) to capture. Device according to the preceding claim, wherein the sensors ( 10 ) are designed as mechanical or electromagnetic sensors. Device according to the preceding claim, wherein a control is provided by means of which the device ( 1 ) pneumatic and / or hydraulic lines and / or remotely controllable via wired or wireless electrical interfaces.

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